What is RakeSearch?

The enormous size of the diagonal Latin squares space makes it unfeasible to enumerate all its objects straightforwardly in reasonable time. So, in order to discover the structure of this space, sophisticated search methods are needed. In RakeSearch project, we implement an application that picks up separate pairs of mutually orthogonal DLSs, which allows to reconstruct full graphs of their orthogonality. You can contribute to our research by running a free program on your computer.

For account creation please use a Crunch_4Science invitation code.

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User of the Day

User profile Profile Aleksander Parkitny
I'm living in Wroclaw, Poland, working as a junior ITS and Security Specialist. I'm counting for over 70 projects. I think that it is very important...

News

Results of the first half of January 2019!
Dear folks!

New Year and holidays! Many people who traveled in Karelia in these days returned home with memories about the magic of coniferous forests, deep star-filled sky, Ruskeala, and other fascinating views of winter nature. Snow and ice - main painters and architects of nature of this time. Thousands of years ago they created many landscape details that we can view now... and left. Ice Age is over. But they back every winter to building of ice bridges, decoration forest, and form of huge snow drifts - for storing water, that very need for life after spring prompting. But what is snow? Snow is ice also! Millions and billions tiny and beautiful ice crystals that form in the atmosphere and gently lowering to the ground. Snowflake! Snowflake unites snow and ice and became the symbol of this month!

Many interesting facts about snowflakes you can read at Dr. Kenneth G. Libbrecht site - SnowCrystals.com. One of the photographs from this site became a badge (with the permission of the author) with which we congratulate the following 183 participants:

JZD and [AF>Amis des Lapins] Phil1966 (L'Alliance Francophone),
fix and [DPC]Division_Brabant~Cow_tipping (Dutch Power Cows),
gato and [AF>Amis des Lapins] Ceclo (L'Alliance Francophone),
Igal and [AF>Libristes]MortelKni (L'Alliance Francophone),
adams and jiri kovar (LITOMYSL Boinc Team Czech Republic),
ladmo and [AF>Libristes]cguillem (L'Alliance Francophone),
Heikki and [AF>Libristes] Elorak (L'Alliance Francophone),
raddoc and Karelian Center for Gender Studies (Karelia),
Server and [AF>HFR>RR] alipse (L'Alliance Francophone),
arkiss and scole of TSBT (The Scottish Boinc Team),
Arbnos and Pavel_Kirpichenko (Astronomy.Ru Forum),
newblar and Skywalker@Athens (Macedonia is Greek!),
hajaumea and [AF] Skinny06 (L'Alliance Francophone),
matemajor and Michael H.W. Weber (Rechenkraft.net),
Andreas64 and Egon olsen (Meisterkuehler.de Team),
Millenium and Steve Dodd (The Planetary Society),
Sengieffe and LeChat51X (L'Alliance Francophone),
Drumheller and Thyler Durden@P3D (Planet 3DNow!),
Hartmut 53 and Rhodan71 (L'Alliance Francophone),
HighTech67 and [SG]KidDoesCrunch (SETI.Germany),
WTBroughton and UBT - Mikeejones (UK BOINC Team),
Michael Polla and [DPC]Blah.NET (Dutch Power Cows),
User (Karelia) and EarlyBird@Zircons (BOINC@Taiwan),
Bok (SETI.USA) and Matthias Lehmkuhl (SETI.Germany),
shiva (SETI.USA) and Johannes Elsner (Planet 3DNow!),
frankhagen (gigo) and joe carnivore (Rechenkraft.net),
ale4316 (Ukraine) and [SG-FC]schilli74 (SETI.Germany),
saiz (Team China) and owensse (The Planetary Society),
Casey ([H]ardOCP) and [DPC] hansR (Dutch Power Cows),
FourOh (SETI.USA) and BlisteringSheep (Ars Technica),
pututu ([H]ardOCP) and Sergey Zhikhorev (Russia Team),
kekkonen (Karelia) and Alez (The Scottish Boinc Team),
ID4 (SETI.Germany) and Птицы Петрозаводска (Karelia),
KR Center (Karelia) and eLPeCKo (Czech National Team),
Louis (CANAL@Boinc) and entigy (Team England (Boinc)),
Werinbert (Free-DC) and http://vk.com/boinc (Karelia),
Jeff17 (BOINCstats) and boceli (Czech National Team),
Kodeks IT (Karelia) and ERBrouwer (Dutch Power Cows),
europe64 (europe64) and PDW (OcUK - Overclockers UK),
-jb- (SETI.Germany) and Uwe-Bergstedt (SETI.Germany),
Inya (SETI.Germany) and Shaman (Czech National Team),
Odd-Rod (BOINCstats) and killik (Czech National Team),
conf [MM] (SETI.USA) and [SG-2W]Kurzer (SETI.Germany),
Coleslaw ([H]ardOCP) and planetclown (Crunching@EVGA),
morgan (Team Norway) and Bigos2 (Czech National Team),
axels (SETI.Germany) and polarbeardj (Crunching@EVGA),
el_teniente (Russia) and [SG]MichaelR. (SETI.Germany),
purplecfh (SETI.USA) and fax (Meisterkuehler.de Team),
JonS (UK BOINC Team) and Ralfy (BOINC Confederation),
MacRuh (SETI.Germany) and Kosta (Czech National Team),
Topper (SETI.Germany) and MaxAMD400 (Rechenkraft.net),
Nexuss (SETI.Germany) and Pjotr Panski (SETI.Germany),
Conan (Cobar Spiders) and [B@P] Daniel (BOINC@Poland),
cluster-krc (Karelia) and [SG] ronaldo (SETI.Germany),
Fornax (SETI.Germany) and UBT - Timbo (UK BOINC Team),
Gaucho (SETI.Germany) and Skivelitis2 (Overclock.net),
Beyond (Ars Technica) and arctic light (SETI.Germany),
pons66 (SETI.Germany) and [SGa]HeNiNnG (SETI.Germany),
lydy1993 (Team China) and robbysites (Crunching@EVGA),
Mumps [MM] (SETI.USA) and Astronomy.Karelia (Karelia),
jozef j (Russia Team) and BritishBob (Overclock.net),
taurec (SETI.Germany) and [SG-FC]shka (SETI.Germany),
RoE187 (SETI.Germany) and bcavnaugh (Crunching@EVGA),
whowhere (AUGE@BOINC) and ReaDy (Astronomy.Ru Forum),
yodap (Crunching@EVGA) and nexiagsi16v (SETI.Germany),
JohnMD (BOINC@Denmark) and [SG-FC] oki (SETI.Germany),
VietOZ (XtremeSystems) and RobertN (Dutch Power Cows),
Dan Sargent (SETI.USA) and PC-COLLEGE (SETI.Germany),
Luigi R. (BOINC.Italy) and Landjunge (Planet 3DNow!),
Argento (BOINC@Poland) and LCB001 (Hardware Canucks),
GLeeM (TeAm AnandTech) and SG-Booster (SETI.Germany),
SergOZ (Crystal Dream) and BlackGoose05 (Team Biss!),
Timothy Mullican (USA) and Adam J Bavier ([H]ardOCP),
JagDoc (Planet 3DNow!) and [SG] Felix (SETI.Germany),
RFGuy_KCCO ([H]ardOCP) and Roadranner (SETI.Germany),
Natalia (Crystal Dream) and hoarfrost (Crystal Dream),
Gipsel (Planet 3DNow!) and KPX (Czech National Team),
Dario666 (BOINC@Poland) and HK-Steve (Crunching@EVGA),
Chipotle (Ars Technica) and Vincent Dark (Team China),
Uli2* (Sicituradastra.) and freestman (Chinese Dream),
zzuupp (TeAm AnandTech) and ankyungha (SETIKAH@KOREA),
herby44 (Planet 3DNow!) and glennpat (XtremeSystems),
sergamena (Russia Team) and CoolAtchOk (Russia Team),
Shmya-2 (Crystal Dream) and Dennis-TW (SETI.Germany),
Dingo (BOINC@AUSTRALIA) and declis (Rechenkraft.net),
СУНТД Карелия (Karelia) and pschoefer (SETI.Germany),
Crunch3r (BOINC United) and XSmeagolX (SETI.Germany),
Hoshione (SETI.Germany) and n2morrow (SETIKAH@KOREA),
kashi (BOINC@AUSTRALIA) and Scoope (Rechenkraft.net),
Freezing (SETI.Germany) and HenkM (Dutch Power Cows),
whizbang (Ars Technica) and Paulteo (Crunching@EVGA),
ssjy806 (SETIKAH@KOREA).

And of course, thank you for all participants for a donation of CPU time and attention to the project!
Also, we send our congratulations to Ralfy - the first participant who return to the # 1 of rank by total credit, and SETI.USA - that overtake Ars Technica team and led the teams ranking.

Happy crunching!
15 Jan 2019, 22:30:08 UTC · Discuss


Closing web registration
Dear participants,

we are going to restrict registration via the website. New users will be allowed to register only via the client. It is due to a large number of spammer accounts. We plan to do this on January 6th. If you have any objections please write them on the forum.

UPD: for web registration please use invitation code written on the front page.

With best regards, Natalia.
3 Jan 2019, 16:27:49 UTC · Discuss


December 2018 totals
Dear folks!

Time of December 2018 is up and we publish of month totals! Total 2891 results with "permutational" ODLS were recieved and 1760 in second part of month. They were found by 147 participants and we send our congratulations to:

jozef j (Russia Team) and Conan (Cobar Spiders),
Hartmut 53 and [AF>Amis des Lapins] Phil1966 (L'Alliance Francophone),
Andreas64 and [DPC]Division_Brabant~Cow_tipping (Dutch Power Cows),
killik (Czech National Team) and europe64 (europe64)
Ralfy (BOINC Confederation) and Stephen Uitti (Project Blue Book),
Mumps [MM] (SETI.USA) and [AF>Libristes]cguillem (L'Alliance Francophone),
Oleg (Russia Team) and [AF>EDLS] Jakez Sulli (L'Alliance Francophone),
Uli2* (Sicituradastra.) and Landjunge (Planet 3DNow!),
SergOZ (Crystal Dream) and whizbang (Ars Technica),
morgan (Team Norway) and http://vk.com/boinc (Karelia),
[B@P] Daniel (BOINC@Poland) and JonS (UK BOINC Team),
Thyler Durden@P3D (Planet 3DNow!) and owensse (The Planetary Society),
Egon olsen (Meisterkuehler.de Team) and declis (Rechenkraft.net),
Vincent Dark (Team China) and saiz (Team China),
Gipsel (Planet 3DNow!) and JagDoc (Planet 3DNow!),
mikey (The Final Front Ear) and joe carnivore (Rechenkraft.net),
BritishBob (Overclock.net) and Astronomy.Karelia (Karelia),
FourOh (SETI.USA) and Skywalker@Athens (Macedonia is Greek!),
arkiss and Stavebni firma Bostik Porici (LITOMYSL Boinc Team Czech Republic),
LCB001 (Hardware Canucks) and Tex1954 (Overclock.net),
KR Center (Karelia) and KPX (Czech National Team),
whowhere (AUGE@BOINC) and Птицы Петрозаводска (Karelia),
ReaDy (Astronomy.Ru Forum) and purplecfh (SETI.USA),
[AF>Libristes] Elorak (L'Alliance Francophone) and matemajor,
[SG-FC]shka (SETI.Germany) and [AF] Skinny06 (L'Alliance Francophone),
sergamena (Russia Team) and cluster-krc (Karelia),
Johannes Elsner (Planet 3DNow!) and [SG-2W]Kurzer (SETI.Germany),
Kodeks IT (Karelia) and respawner (Rechenkraft.net),
newblar and PDW (OcUK - Overclockers UK),
Soderstromm (Gridcoin) and Casey ([H]ardOCP),
the-who (Team China) and frankhagen (gigo),
ladmo and Shaman (Czech National Team),
mike765321 and Frank [RKN] (Rechenkraft.net),
Crunch3r (BOINC United) and EarlyBird@Zircons (BOINC@Taiwan),
amazing (SETIKAH@KOREA) and entigy (Team England (Boinc)),
Karelian Center for Gender Studies (Karelia) and Chipotle (Ars Technica),
ssjy806 (SETIKAH@KOREA) and ERBrouwer (Dutch Power Cows),
ShmoogleOsukami (Gridcoin) and lydy1993 (Team China),
rebel9 and Michael H.W. Weber (Rechenkraft.net),
RobertN (Dutch Power Cows) and CoolAtchOk (Russia Team),
necavi (BOINC@Poland) and [DPC]Blah.NET (Dutch Power Cows),
Timothy Mullican (USA) and n2morrow (SETIKAH@KOREA),
ankyungha (SETIKAH@KOREA) and Jeff17 (BOINCstats),
Shmya-2 (Crystal Dream) and boceli (Czech National Team),
igos and [AF>Amis des Lapins] Ceclo (L'Alliance Francophone),
matszpk and [AF>Occitania]franky82 (L'Alliance Francophone),
BlisteringSheep (Ars Technica) and BlackGoose05 (Team Biss!),
citerra (Russia Team) and pons66 (SETI.Germany),
JugNut (BOINC@AUSTRALIA) and СУНТД Карелия (Karelia),
Steve Dodd (The Planetary Society) and Butteroven (Everything2 Noders),
Stimpy (Rechenkraft.net) and Matthias Lehmkuhl (SETI.Germany),
Международная база наблюдений комет (Karelia) and Millenium,
GLeeM (TeAm AnandTech) and hoarfrost (Crystal Dream),
el_teniente (Russia) and Dan Sargent (SETI.USA),
LeChat51X (L'Alliance Francophone) and MatzeKnop,
adams and Pavel_Kirpichenko (Astronomy.Ru Forum),
bcavnaugh (Crunching@EVGA) and Bok (Free-DC),
Adam J Bavier ([H]ardOCP) and Jerzy_Przytocki (BOINC@Poland),
Sengieffe and Plejaden (Boinc Team Gruppe 2004),
Coleslaw ([H]ardOCP) and PC-COLLEGE (SETI.Germany),
kttu (MiaoLi@Taiwan) and kim-b-h (BOINC@Denmark),
motqalden ([H]ardOCP) and jeanp (BOINC.BE),
Uwe-Bergstedt (SETI.Germany) and MaxAMD400 (Rechenkraft.net),
[SG]KidDoesCrunch (SETI.Germany) and Dennis-TW (SETI.Germany),
Bigos2 (Czech National Team) and Kosta (Czech National Team),
[SG] Felix (SETI.Germany) and RoE187 (SETI.Germany),
JohnMD (BOINC@Denmark) and ID4 (SETI.Germany),
Freezing (SETI.Germany) and UrsD (SETI.Germany),
RFGuy_KCCO ([H]ardOCP) and kashi (BOINC@AUSTRALIA),
zzuupp (TeAm AnandTech) and Pjotr Panski (SETI.Germany),
eLPeCKo (Czech National Team) and axels (SETI.Germany),
[SG] ronaldo (SETI.Germany) and Luigi R. (BOINC.Italy),
XAVER and -jb- (SETI.Germany),
SG-Booster (SETI.Germany).

As usual all participant, that found at least one ODLS pair in the month - received a badge!
Thank you for attention to the project and participation!
1 Jan 2019, 14:34:58 UTC · Discuss


Christmas Graphs. Part 3!
Dear participants!

The third part of "Christmas types" of graph from ODLS found in RakeSearch project were published on preliminary results page. 8 new graphs and 1 known makes up this set:

[R9_000469786/02] - 40 vertices and 400 edges. Each vertex from "north" and "south polar caps" linked to nodes in equatorial belt! Previously we see similar structures but this is larger.


[R9_000478253/02] - 48 vertices and 126 edges, already published as Necklace about a year ago. This graph was very easy to spot and it was found first. Now we publish it as item of the ordered catalog. With edges as the straight line, the figure becomes even more astonishing!


[R9_000479189/03] - 44 vertices and 288 edges,


[R9_000486938/01] - 12 vertices and 17 edges,


[R9_000493179/02] - 96 vertices and 411 edges,


[R9_000493909/02] - 96 vertices and 432 edges,


[R9_000494626/01] - 40 vertices and 304 edges,


[R9_000494629/02] - 24 vertices and 96 edges,


[R9_000507363/01] - 28 vertices and 104 edges,


This is the last part of "Christmas graphs". About a year ago (22th of December 2017) we could to detect the first type of graph and publish it. Over the past year, we have completed the post-processing of those results that were obtained before him and with him. The cycle is closed. :) Recently where finished post-processing of next large bunch of results - in several times larger than already published set, but we decided not to watch them until we publish these. Now we are all - crunchers and project developers are equal. We know about findings in the published set, and don't know what awaits us in the new data. And it's very interesting!

Thank you for all crunchers for attention to the project. Your computers are allowed to make these findings! Successes, unstoppable work of computers and discoveries! And Happy New Year!

Thank you and happy crunching!
27 Dec 2018, 18:35:57 UTC · Discuss


Christmas Graphs. Part 2!
Dear participants!

Next set of types of graph from ODLS found in RakeSearch project were published on preliminary results page. It contains the following 8 graphs:

[R9_000435650/01] - 36 vertices and 87 edges:


[R9_000437182/01] - 16 vertices and 19 edges:


[R9_000437475/01] - 40 vertices and 103 edges:


[R9_000441537/01] - 9 vertices and 8 edges:


[R9_000447311/05] - 20 vertices and 36 edges:


[R9_000463421/02] - 24 vertices and 54 edges.


[R9_000463423/01] - 24 vertices and 60 edges:


[R9_000464235/03] - 176 vertices and 912 edges:


Some of them look chaotic, but three other - symmetrical, two from them - with three-radial symmetry! Thank you for you attention to the project what allows to make such finds!
26 Dec 2018, 16:52:31 UTC · Discuss


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